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Abnormal glucose homeostasis and fasting intolerance in patients with congenital porto-systemic shunts.


ABSTRACT: In physiological glucose homeostasis, the liver plays a crucial role in the extraction of glucose from the portal circulation and storage as glycogen to enable release through glycogenolysis upon fasting. In addition, insulin secreted by the pancreas is partly eliminated from the systemic circulation by hepatic first-pass. Therefore, patients with a congenital porto-systemic shunt present a unique combination of (a) postabsorptive hyperinsulinemic hypoglycaemia (HH) because of decreased insulin elimination and (b) fasting (ketotic) hypoglycaemia because of decreased glycogenolysis. Patients with porto-systemic shunts therefore provide important insight into the role of the portal circulation and hepatic function in different phases of glucose homeostasis.

SUBMITTER: van Albada ME 

PROVIDER: S-EPMC10471981 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Abnormal glucose homeostasis and fasting intolerance in patients with congenital porto-systemic shunts.

van Albada Mirjam E ME   Shah Pratik P   Derks Terry G J TGJ   Fuchs Sabine S   Jans Judith J M JJM   McLin Valérie V   van der Doef Hubert P J HPJ  

Frontiers in endocrinology 20230818


In physiological glucose homeostasis, the liver plays a crucial role in the extraction of glucose from the portal circulation and storage as glycogen to enable release through glycogenolysis upon fasting. In addition, insulin secreted by the pancreas is partly eliminated from the systemic circulation by hepatic first-pass. Therefore, patients with a congenital porto-systemic shunt present a unique combination of (a) postabsorptive hyperinsulinemic hypoglycaemia (HH) because of decreased insulin  ...[more]

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